/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package src.Sevrlet;

import java.io.File;
import src.Ultil.XMLUltilities;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import src.parseInfo.DienMayPaseInfo;
import src.parseInfo.FPTShopParseInfo;
import src.parseInfo.SimpleParser;
import src.parseInfo.WebParseInfor;
import src.parseInfo.WebParser;
import src.pojo.Product;
import src.pojo.Products;

/**
 *
 * @author LeMinh
 */
public class ProcessServlet extends HttpServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    private final String xmlFile = "xml/";
    private final String currentPage = "index.jsp";

    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

        response.setContentType("text/html;charset=UTF-8");
        request.setCharacterEncoding("UTF-8");
        PrintWriter out = response.getWriter();
        try {
            String realPath = getServletContext().getRealPath("/");
            String xml = realPath + xmlFile;
            String button = request.getParameter("btAction");

            File xmlFileCheck = new File(xml + "FPTShop.xml");

            if (!xmlFileCheck.exists()) {
                System.out.println("Begin Parse");
//                 infor = new DienMayPaseInfo();
                WebParser parser = new SimpleParser();
//                parser.setWebParseInfo(infor);
//                List<Product> listProduct = parser.getProduct(0,1);
                Products products = new Products();
//                products.getProduct().addAll(listProduct);
//                XMLUltilities.createXMLFromObject(products, xml + "dienmay.xml");
//                System.out.println(listProduct.size() + " products parsed in DienMay.com");
//                products.getProduct().clear();
                WebParseInfor infor = new FPTShopParseInfo();
                parser.setWebParseInfo(infor);
                 List<Product> listProduct = parser.getProduct(0, 1);
                products.getProduct().addAll(listProduct);
                 System.out.println(listProduct.size() + " products parsed in FPTShop.com");
                XMLUltilities.createXMLFromObject(products, xml + "FPTShop.xml");
                RequestDispatcher rd = request.getRequestDispatcher(currentPage);
                rd.forward(request, response);
            } else {
                RequestDispatcher rd = request.getRequestDispatcher(currentPage);
                rd.forward(request, response);
            }
        } finally {
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
